Portrait of John Harrison

Server Costs Fundraiser 2023

Running a website with millions of readers every month is expensive. Not only do we pay for our servers, but also for related services such as our content delivery network, Google Workspace, email, and much more. We would much rather spend this money on producing more free history content for the world. Thank you for your help!
$10228 / $21000

Illustration

Mark Cartwright
by Science Museum, London
published on 10 March 2023
Portrait of John Harrison Download Full Size Image

A c. 1767 portrait by Thomas King of the English clockmaker John Harrison (1693-1776) who invented the marine chronometer to accurately measure longitude. The chronometer he is holding is the H3, one of a series of five watches he made. (Science Museum, London)

Remove Ads

Advertisement

Cite This Work

APA Style

London, S. M. (2023, March 10). Portrait of John Harrison. World History Encyclopedia. Retrieved from https://www.worldhistory.org/image/17188/portrait-of-john-harrison/

Chicago Style

London, Science Museum,. "Portrait of John Harrison." World History Encyclopedia. Last modified March 10, 2023. https://www.worldhistory.org/image/17188/portrait-of-john-harrison/.

MLA Style

London, Science Museum,. "Portrait of John Harrison." World History Encyclopedia. World History Encyclopedia, 10 Mar 2023. Web. 27 Mar 2023.

Membership